$74 Cheap United flights Washington (IAD) to Boston (BOS)

View $74 flight on Thu, Dec 4, 2025Opens in a new window

$74 Cheap United flights Washington (IAD) to Boston (BOS)

Prices were available within the past 7 days and start at $74 for one-way flights and $243 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Jun 28 - Mon, Jun 29
IAD
Washington
BOS
Boston
$243 Roundtrip, found 4 days ago
$243
Roundtrip
found 4 days ago
Select United flight, departing Sun, Jun 28 from Washington to Boston, returning Mon, Jun 29, priced at $243 found 4 days ago
Flights from Washington (IAD) to Boston (BOS)
Origin airport
Washington Dulles Intl.
Destination airport
Logan Intl.
Distance
657 km
Average flight time
3 hours 29 mins